centerboard
1. [ noun ] (nautical) a retractable fin keel used on sailboats to prevent drifting to leeward
Synonyms: drop_keel sliding_keel centreboard
Related terms: fin_keel daggerboard sailboat
Similar spelling:   centreboard
  centered
  centerfold
  centroid
  centrarchid
  center_on
  centering
  centerfield
  center_spread
  center_out
  centerline
  center_bit
  centroidal
  Centrarchidae
  center_field
  centerfielder
  center-fire
  Centrosema
  center_line
  centerpiece
  center_stage
  center_punch
  centriole
  Centropristis
  Centropus
  center_fielder
  centurion